让学生自主学习,充分发挥学生的主体作用,减负增效,让学生成为课堂上的主人.营造积极、宽松、和谐的教学氛围,把课堂还给学生.激发学生的学习兴趣,把乐趣还给学生.尊重学生,加强数学知识和实际生活的联系,把伙伴还给学生,提高学生解决实际问题的能力. Let the students learn independently, give full play to the role of the students, reduce the negative effects and increase efficiency, let the students become the masters of the classroom.Create a positive, relaxed and harmonious teaching atmosphere, and return the class to the students.Visit the student’s interest in learning and return the fun Students Respect students, strengthen the connection between mathematical knowledge and real life, and return partners to students to improve their ability to solve practical problems.